Technical data
144 6000 Series Oscilloscopes Service Guide
6 Replacing 6000L Assemblies
part numbers used in the assemblies, and shows you how all 
of the assemblies fit together. 
Read All Warnings and Cautions
Read the following warnings and cautions before removing 
and replacing any assemblies in the oscilloscope.
WARNING
HAZARDOUS VOLTAGES !
Read the safety summary at the back of this book before proceeding.
Maintenance is performed with power supplied to the oscilloscope and with the 
protective covers removed. Only trained service personnel who are aware of the 
hazards involved should perform the maintenance. Whenever possible, perform the 
procedures with the power cord removed from the oscilloscope. 
WARNING
AVOID ELECTRICAL SHOCK !
Hazardous voltages exist on the LCD assembly and power supply. To avoid 
electrical shock:
1 Disconnect the power cord from the oscilloscope.
2 Wait at least three minutes for the capacitors in the oscilloscope to discharge 
before you begin disassembly.
Read the Safety Summary at the back of this manual before you begin.
CAUTION
REMOVE POWER TO AVOID DAMAGE !
Remove power before you begin to remove and replace assemblies. Do not remove 
or replace assemblies while the oscilloscope is turned on, or damage to the 
components can occur.
CAUTION
AVOID DAMAGE TO ELECTRONIC COMPONENTS !
ELECTROSTATIC DISCHARGE (ESD) can damage electronic components. When 
doing any of the procedures in this chapter, use proper ESD precautions. As a 
minimum, you should place the instrument on a properly grounded ESD mat and 
wear a properly grounded ESD strap.
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